Ducky: "You never heard of a night at the opera?" DiNozzo: "Sure! Groucho as Otis B. Driftwood, the Marx Brothers at their most hilarious. Love the part where they rip up the contract..." Ducky: "'That's no gooda for you, it's no gooda for me.'"
Tony asks Abby if she's heard anything from Hazzard County. She responds by calling him "Bo" and then McGee calls and asks him how Uncle Jesse is doing.